Very solid construction of frames. Fabric appears to be good quality but too early to determine weather resistance. Fasteners are soft and cheap but they gave extras in case treads get stripped. 
Instructions are marginal to none. You will be on your own to figure out how the components go together.
But we were successful in getting them assembled and they seem to be very solid chairs.  
Glad we purchased these and wish you well in assembling yours.  Lack of good assembly details only negative.